<script setup lang="ts">
import { computed, provide, useSlots } from 'vue'
import VPBackdrop from './components/VPBackdrop.vue'
import VPContent from './components/VPContent.vue'
import VPFooter from './components/VPFooter.vue'
import VPLocalNav from './components/VPLocalNav.vue'
import VPNav from './components/VPNav.vue'
import VPSidebar from './components/VPSidebar.vue'
import VPSkipLink from './components/VPSkipLink.vue'
import { useData } from './composables/data'
import { layoutInfoInjectionKey, registerWatchers } from './composables/layout'
import { useSidebarControl } from './composables/sidebar'

const {
  isOpen: isSidebarOpen,
  open: openSidebar,
  close: closeSidebar
} = useSidebarControl()

registerWatchers({ closeSidebar })

const { frontmatter } = useData()

const slots = useSlots()
const heroImageSlotExists = computed(() => !!slots['home-hero-image'])

provide(layoutInfoInjectionKey, { heroImageSlotExists })
</script>

<template>
  <div
    v-if="frontmatter.layout !== false"
    class="Layout"
    :class="frontmatter.pageClass"
  >
    <slot name="layout-top" />
    <VPSkipLink />
    <VPBackdrop class="backdrop" :show="isSidebarOpen" @click="closeSidebar" />
    <VPNav>
      <template #nav-bar-title-before><slot name="nav-bar-title-before" /></template>
      <template #nav-bar-title-after><slot name="nav-bar-title-after" /></template>
      <template #nav-bar-content-before><slot name="nav-bar-content-before" /></template>
      <template #nav-bar-content-after><slot name="nav-bar-content-after" /></template>
      <template #nav-screen-content-before><slot name="nav-screen-content-before" /></template>
      <template #nav-screen-content-after><slot name="nav-screen-content-after" /></template>
    </VPNav>
    <VPLocalNav :open="isSidebarOpen" @open-menu="openSidebar" />

    <VPSidebar :open="isSidebarOpen">
      <template #sidebar-nav-before><slot name="sidebar-nav-before" /></template>
      <template #sidebar-nav-after><slot name="sidebar-nav-after" /></template>
    </VPSidebar>

    <VPContent>
      <template #page-top><slot name="page-top" /></template>
      <template #page-bottom><slot name="page-bottom" /></template>

      <template #not-found><slot name="not-found" /></template>
      <template #home-hero-before><slot name="home-hero-before" /></template>
      <template #home-hero-info-before><slot name="home-hero-info-before" /></template>
      <template #home-hero-info><slot name="home-hero-info" /></template>
      <template #home-hero-info-after><slot name="home-hero-info-after" /></template>
      <template #home-hero-actions-after><slot name="home-hero-actions-after" /></template>
      <template #home-hero-image><slot name="home-hero-image" /></template>
      <template #home-hero-after><slot name="home-hero-after" /></template>
      <template #home-features-before><slot name="home-features-before" /></template>
      <template #home-features-after><slot name="home-features-after" /></template>

      <template #doc-footer-before><slot name="doc-footer-before" /></template>
      <template #doc-before><slot name="doc-before" /></template>
      <template #doc-after><slot name="doc-after" /></template>
      <template #doc-top><slot name="doc-top" /></template>
      <template #doc-bottom><slot name="doc-bottom" /></template>

      <template #aside-top><slot name="aside-top" /></template>
      <template #aside-bottom><slot name="aside-bottom" /></template>
      <template #aside-outline-before><slot name="aside-outline-before" /></template>
      <template #aside-outline-after><slot name="aside-outline-after" /></template>
      <template #aside-ads-before><slot name="aside-ads-before" /></template>
      <template #aside-ads-after><slot name="aside-ads-after" /></template>
    </VPContent>

    <VPFooter />
    <slot name="layout-bottom" />
  </div>
  <Content v-else />
</template>

<style scoped>
.Layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
</style>
